METHOD FOR PRODUCING FIBER-REINFORCED COMPOSITE MATERIAL AND FIBER-REINFORCED COMPOSITE MATERIAL

• Main Authors: NATSUME NORIMITSU, MIYOSHI NAOMI
• Format: Patent
• Language: English
• Published: 15.01.2003
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method for producing a fiber-reinforced composite material having excellent heat resistance, flame resistance and mechanical characteristics. SOLUTION: The method comprises the following steps in this order using a resin composition containing a cyanate ester compound represented by a special structural formula of 100 pts.wt. and a metal coordination type catalyst of 0.001-5 pts.wt. and/or an active hydrogen type catalyst of 0.1-10 pts.wt.: (1) a step for arranging a reinforced fiber and a resin composition with a mold, (2) a step for heating them at 50-95 deg.C to obtain a fiber-reinforced composite material intermediate, (3) a step for detaching the intermediate from the mold and (4) a step for heating the intermediate at 130-250 deg.C to obtain the fiber- reinforced composite material. The fiber-reinforced composite material is obtained by the method.